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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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><DIV
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><H1
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><A
NAME="AEN1669"
>Appropriate Remote Commands</A
></H1
><P
> All of the remote commands described above are wrapped up with
the usual boilerplate. The files always start with
<VAR
CLASS="literal"
>00 00 00</VAR
> and the “magic”
command described above, then two <VAR
CLASS="literal"
>ESC @</VAR
>s to
reset the printer. The remote command sequences come next; if
they print anything that is usually followed by a
<VAR
CLASS="literal"
>FF</VAR
> (<VAR
CLASS="literal"
>0C</VAR
> hex) character to
feed the page, then the file ends with another two
<VAR
CLASS="literal"
>ESC @</VAR
>s to get back to the ground state.
</P
><P
> An alignment sequence goes like this:
</P
><P
></P
><OL
TYPE="1"
><LI
><P
> Host uses <VAR
CLASS="literal"
>DT</VAR
> to print an alignment
sheet.
</P
></LI
><LI
><P
> User eyeballs the sheet to see which is the best aligned
pattern.
</P
></LI
><LI
><P
> Host sends a <VAR
CLASS="literal"
>DA</VAR
> command indicating
which pattern the user chose.
</P
></LI
><LI
><P
> If the user said “realign”, meaning he isn't
done yet, go to step 1.
</P
></LI
><LI
><P
> We are done: host sends a <VAR
CLASS="literal"
>SV</VAR
> command
and exits.
</P
></LI
></OL
><P
> The sequence used (by the STC 3000, at least) to print from
the roll feed is (with byte count omitted):
</P
><DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN1693"
></A
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="screen"
>PM 00 00
SN 00 00 00
EX 00 00 00 00 05 01
ST 00 01
SM 00 02</PRE
></TD
></TR
></TABLE
><P
></P
></DIV
><P
> The sequence used by the STP 870 to print on plain paper is
</P
><DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN1696"
></A
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="screen"
>PM 00 00
IR 00 03
SN 00 00 01
SN 00 01 00
SN 00 02 01
EX 00 00 00 00 05 00
FP 00 00 00</PRE
></TD
></TR
></TABLE
><P
></P
></DIV
><P
> and the job finishes with
</P
><DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN1699"
></A
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="screen"
>IR 00 02
LD</PRE
></TD
></TR
></TABLE
><P
></P
></DIV
><P
> For different paper type settings on the STP 870, the
arguments to <VAR
CLASS="literal"
>SN</VAR
> vary. The arguments to the
first and third <VAR
CLASS="literal"
>SN</VAR
> commands are as outlined
in the description of the <VAR
CLASS="literal"
>SN</VAR
> command above;
the arguments to the second (“platen gap”) are
<VAR
CLASS="literal"
>00 01 01</VAR
> for thick papers (“matte
paper—heavyweight”, “photo paper” and
“premium glossy photo paper”) and <VAR
CLASS="literal"
>00 01
00</VAR
> for all others.
</P
><P
> For roll-mode printing, the STP 870's sequence changes as
follows. <VAR
CLASS="literal"
>IR</VAR
>'s arguments become <VAR
CLASS="literal"
>00
01</VAR
> in the header, and <VAR
CLASS="literal"
>00 00</VAR
> after
the job, and <VAR
CLASS="literal"
>EX</VAR
>'s last argument changes
from <CODE
CLASS="constant"
>00</CODE
> to <CODE
CLASS="constant"
>01</CODE
>.
</P
><P
> For zero-margin printing on the STP 870, the arguments to
<VAR
CLASS="literal"
>FP</VAR
> become <VAR
CLASS="literal"
>00 0xb0 0xff</VAR
>.
This moves the origin about 5.5mm to the left, to a point one
tenth of an inch to the left of the left-hand edge of the
paper, allowing printing right up to (and beyond) the edge of
the paper. Some printers (at least the STP 870) include white
absorbent pads at the left margin position and other positions
(89mm and 100mm on the STP 870) to soak up ink which misses
the edge of the paper. Printing off the edge of paper of a
width not aligned with a pad could result in making a mess of
the inside of the printer and ink getting on the reverse of
the paper.
</P
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